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What is a little bluebird and a paper plane?

Angry Birds: From Little Bluebird Animation. Little Bluebird, this is just a magical paper plane. Angry Birds animated short film series is an animated HD video broadcast on Youku, which was launched on 2017-08-2221:00: 41. Name of original author: AngryBirds. In 2009, "Angry Birds" was just a small game on the mobile phone, which quickly became popular all over the world, and later related movies and TV series were made.